If you haven't had a go at the The Orange Box yet you're surely missing out on one of the most creative titles of 2007. I'm not talking about Half-Life 2 or Team Fortress 2 though.

Anyone who has gotten their hands on The Orange Box has had a chance to play Portal and has more than likely beaten it - probably pretty quickly. In short - Portal was short.

Wicked short.

Like most game's in this generation the title will most surely get some DLC in the future but no plans have been announced yet by Valve. Leave it to a Bethesda employee to go ahead and jump in!

Bethesda level designer Daryl Brigner has created his own downloadable Portal level called Ren Test2. If you're playing the PC version check out the post over on Bethesda's blog and give it a try.